Apparatus for repairing drills.



No. 657,5I9. Patented Sept. Il, |900.

P. L. CRUSSMAN.

APPARATUS FOR BEPAIRING DRILL'S. Y

(Applicatinn mm Feb. 4-, 19m.)

(NoModel.)

fyi?.

In: onlus murs w. wmauwa. wmnwou. n, c.

UNITED STATES PATENT OFFICE.P

PERRiT L. cRossMAN, or JoPLIN, MissoURI.

APPARATUS FOR RPAIRING DRILLS.

SPECIFICATION forming part of Letters Patent No. 657,519, datedSeptember 11, 1900.

Application led February 24, 190. Serial No. 6,374. (No model.)

To all whom, it may con/cern,.-

Be it known that I, PERRY L. CROSSMAN, a citizen of the United States, residing at Joplin, in the county of Jasper and State of Missouri, have invented a newand useful Steam- Hammer, of which the following is a specification. l

This invention relates to steam-ham mers in general and more particularly to a hammeradapted for use in repairing the bits of drills used in the drilling of Artesian and oil wells, one object of the invention being to provide a construction which will be simple and cheap of manufacture and efficient in its operation, further objects being evident from the following specification.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure lis a fron't elevation of a hammer constructed in accordance with the present invention. Fig. 2 is a side elevation of Fig. 1. Fig. 3 is a side elevation of a swaging-hammer used for forming the blade of the bit. Fig. 4E is a perspective View of the frame of the bit-jack.

Referring now tothe drawings, the hammer of the present invention is mounted slidably in a frame comprising a base 5, to which are attached parallel and vertical uprights 6 and 7, which are mutually connected at their upper ends by means of a cross-piece 8, upon which is mounted a steam-cylinder 9. The upper end of this cylinder is open, and a slight distance below its open upper end are formed perforations 10.

In the cylinder 9 is disposed a piston, the rod l2 of which extends through 'the crosspiece 8 downwardly and between the uprights 6 and 7. As the piston 11 is reciprocated in the cylinder Ithe rod 12 is correspondingly moved. A cross-head 13 is mounted upon the uprights 6 and 7 through the medium of ears 14 upon the cross-head and through which the uprights are passed, this cross-head being attached to the piston-rod for movement therewith. The lower portion of the cross-head is tapered, as shown, and in this tapered portion is formed a recess or seat, which is adapted to receive, removably, a

hammer-head 15, held in place by means of a 'set-screw 1G or in any other suitable manner.

In order to reciprocate the piston 11 to correspondingly move the crossliead, the lower end of the cylinder 9 is closed, and communieating with this cylinder, above its closed lower end, isa combined feed and outlet pipe 17, havinga three-way valve 1S upon its outer end. One of the branches of the valve connects with a steam-exhaust pipe 19, and the `third arm connects with a steam-feed pipe 20, :which Aleads from a suitable source of steamsupply.' An operating-rod for the valve 18 is shown at 21 and extends downwardly and `into position to be readilygrasped by the operator of the hammer. With this construction it will be seen that by operating the Valve-rod 21 in one direction steam will be admitted to the cylinder 9 and the piston 1l will be forced upwardly to raise the crosshead.` When the piston has reached a point above the `'perforations 10, the steam under pressure will escape from such openings and upward movement of the piston will be discontinued. If the valve operating rod be then moved in an opposite direction, the steamexhaust will be opened and the steam in the cylinder will run out to permit the The steam may be admitted, cut off, and permitted to flow out at will and in this manner the stroke of the hammer may be. regulated to a nicety. In order that a bit may be held in operativ "relation to the hammer and may be moved readily into and out of operative position at will, a jack is provided, which consists of a U-shaped frame 25, the extremities of the arms of which are connected to a shaft 26, which is rotatably mounted in ears 27 upon the base 5 and between the uprights 6 and 7. The shaft has a lever attached thereto for rocking the shaft. The upper ends of the arms ofthe U-shaped frame are continued beyond the web 28 of the frame, and these eX- tending portions are bent in the same direction to lie at right angles to the arms to receive a drill upon the web and between the arms. In the central portion of the shaft 26 is secured a block 29, in the central portion ICO vlo

disposed a helical spring 38.

sorbs the jar ofthe piston-rod when thehead; and rod are dropped and also relievestheljd:

of which is an opening to receive the eXtrem-il it;7 of the-butt ofithebit, which butt is tapered in the usual manner for engagement with a recess in the drill-shaft end. A stop-bar is secured to the uprights 6 and 7 and transversely thereof, this cross-bar having an out- Wardly-curved portionwhich receivesthebit in its inwardly-curved opposite face when the jack is rocked to cause the bit to standereqlt When the bit is in a vertical position against the stop-bar, the web 28 lies against the op-,f

pesi''e Side ofthe bit, and the. extremities ef the arms of the U-shaped frame lie onA oppo` site sides thereof, and thuswhen the leveris operated to move the jack, with the bit, into a reclining positionl the webwill lie under/and will support the bit. v

In een-neetenwith the steamrhammer there is employedJ a swaging-ham-111er,l (shown in y Fg- 3 0f the drawings.) and which hammerha a V-Shaped. groove in its headv which` ist@ beited Over `the upper end; of thedrilll-,bit

TheSteam-hammer is the-n operated test-nike; the swag-ing-hammer-and drive it down upon` the bit. with thewell-knojwn result.

Adler-renty the; base 5` is located an anvil; 5,5V

in Sllh Position that when the jackisjeper-v ated t0 lne-Vethe bit from under the Steamhammer itwillmove it onto the anyilforfurf.y

ther operation.l Y As illustrated in Fig. 1 of the-drawingshe; cross-head 13 has a central tranSVeES recess whichcommunicates with a-perforationin the upper end of the cross head and through. which-perforation` is passed the pistou-rod V12;.V Thel lower endl of the pistorlfred within; the; recess 36 hasanenlarged head, and betvgveen,y this head and the lower end of the recess is of the jar Whentheupward movement-0f the' cross-head is suddenly arrested.

In practice various modifications of the specific structure may be made and any suit,-V

able proportions and materials may loe-used Without departing fromr the spirit of the in-v g vention. Y

This Spring abv What is claimed is- 1f. 'A steam 'swagingfmachine comprising uprights, a cylinder carriedby the uprlghts at the upper ends thereof, a cross head slidably engagedl with the y uprights and having a spring-receiving recess and a com mumcating guideway, a piston in the cylinder and having a rod passed through the guidevvay and into i the recess, aspringrinthe recess, a head upon the rod engaging the spring, a base for the up- Ir-ights', ears upon the base, a drill-holding items pvtelly mounted.. in the ears, a Step- 4vbar upon the uprights in the path offmovement ot nthe'drill-,frame. to retain said frame in operative .f position, and steam supply i and exhaust connectie,ns,withtheV cylinder,

the erosshead havingU a hammer connected therewith forengegement withL a drill 1.11 the frame., Y

2.5, A steam swgng machine eemprising a; seetu'penithe. shaft for the buttef the'drill,

- meensfer. reekfiug'ybhe, Shaft, and e.' Shop-bel upon the uprights. for contact byv a drill 1n the {rameroA stop the-drill in operative relation to the,k cross-head,A said cross-head having a hammer for engagement with the drill in the framei In testimony that I clalm the foregoing as g nity-own I haveherete-raxed my signature in the presence of two,l witnesses.-

PE'RRY L. CROSSMAN'.

Witnesses JOHN L. S'rREEBY, A, L, MGKINSEY. 

